Walter; Bruno H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Walter; Bruno H..The latest application filed is for "down hole multiple piston tools operated by pulse generation tools and methods for drilling".
- Walter; Bruno H. - St. Albert CA
- Walter; Bruno H. - North Vancouver CA
- Walter; Bruno H. - Vancouver CA
- Walter, Bruno H - North Vancouver CA
- Walter; Bruno H. - Edmonton Alberta CA
- Walter; Bruno H. - Kingston Ontario CA
| Patent | Date |
|---|---|
| Down hole multiple piston tools operated by pulse generation tools and methods for drilling Grant 8,322,463 - Walter December 4, 2 | 2012-12-04 |
| Tubular handling device Grant 7,784,551 - Angman , et al. August 31, 2 | 2010-08-31 |
| Down Hole Multiple Piston Tools Operated By Pulse Generation Tools And Methods For Drilling App 20100065330 - Walter; Bruno H. | 2010-03-18 |
| Tubular Gripping Device App 20080210439 - ANGMAN; PER G. ; et al. | 2008-09-04 |
| Lining well bore junctions Grant 7,373,984 - Pratt , et al. May 20, 2 | 2008-05-20 |
| Under reamer Grant 7,370,712 - Stout , et al. May 13, 2 | 2008-05-13 |
| Adjustable window liner Grant 7,299,864 - Pratt , et al. November 27, 2 | 2007-11-27 |
| Valve method for drilling with casing using pressurized drilling fluid Grant 7,140,455 - Walter , et al. November 28, 2 | 2006-11-28 |
| Lining well bore junctions App 20060131032 - Pratt; Christopher A. ; et al. | 2006-06-22 |
| Adjustable window liner App 20060131026 - Pratt; Christopher A. ; et al. | 2006-06-22 |
| Expandable bit App 20060096785 - Walter; Bruno H. ; et al. | 2006-05-11 |
| Under reamer App 20050205305 - Stout, Mark Clifton ; et al. | 2005-09-22 |
| Flow pulsing method and apparatus for the increase of the rate of drilling Grant 6,053,261 - Walter April 25, 2 | 2000-04-25 |
| Water hammer driven cavitation chamber Grant 5,519,670 - Walter May 21, 1 | 1996-05-21 |
| Apparatus for degassing liquids Grant 5,508,975 - Walter April 16, 1 | 1996-04-16 |
| Method and apparatus for generating high energy acoustic pulses Grant 5,459,699 - Walter October 17, 1 | 1995-10-17 |
| Bed mattress or the like and pressurized liquid supply system Grant 5,267,365 - Walter December 7, 1 | 1993-12-07 |
| Flow pulsing apparatus for drill string Grant 5,190,114 - Walter March 2, 1 | 1993-03-02 |
| Flow pulsing method and apparatus for drill string Grant 5,009,272 - Walter April 23, 1 | 1991-04-23 |
| Flow pulsing apparatus and method for down-hole drilling equipment Grant 4,979,577 - Walter December 25, 1 | 1990-12-25 |
| Flow pulsing apparatus with axially movable valve Grant 4,830,122 - Walter May 16, 1 | 1989-05-16 |
| Flow pulsing apparatus for use in drill string Grant 4,819,745 - Walter April 11, 1 | 1989-04-11 |
| Intermittently rotatable down hole drilling tool Grant 4,427,079 - Walter January 24, 1 | 1984-01-24 |
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